These droids are nearly indestructable. They are gold plated, but what materials lay uderneath the gold plating is a closely guarded secret. They are the personal body guards of the Droid King, and only two will ever be made at one time. So far, appearently the only effective way to destroy them from the ground (air strikes and bombing runs seem to be effective against these droids) is to use a negator(Black hole gun) or negator grenades(Black hole grenades), but 42 magazines from a projectile assault rifle will also work. Their proccessors are highly advanced, and they are almost as intelligent as a living thing. They cost over 4 billion credits to produce.